A "Fosk" (huge foreskin) which can be used to preserve fossill fuels. The huge foreskin or fosk, would be used instead of fossill fuel and is generally known as "millenium fuel". Originated on the beaches of Barcelona in 2007, during a climate change summit!!

Dad - My god son, that could be used as millenium Fuel!!
Son - What you trying to say Dad?
Dad - You've got a massive foreskin son!!